Abstract
This paper focuses on the methods that ensure the rotor angle stability of electric power systems, which is most frequently analyzed with small-signal models. Over the past several decades, power system stabilizers (PSSs) for conventional excitation systems were the main tools for improving the small-signal stability of electromechanical oscillatory modes. In the last decade, power oscillation damping (POD) control implemented in photovoltaic (PV) inverters has been considered an alternative to PSSs. As PV generation undergoes massive rollout due to policy directions and renewable energy source integration activities, it could potentially be used as a source of damping, which is crucial for sustaining the rotor angle stability of the remaining in-service synchronous generators. Several studies have already been dedicated to the development of different damping strategies. This paper contributes to the existing research in power system stability by providing a comprehensive review of the effects of PV generation on small-signal stability, as well as the recent evolution of POD control through PV inverters. The features and impacts of the various ways to realize POD controllers are assessed and summarized in this paper. Currently, detailed information and discussions on the practical application of PV inverter PODs are not available. This paper is, thus, intended to initiate a relevant discussion and propose possible implementation approaches concerning the topic under study.
Highlights
Large interconnected power systems offer several advantages such as liberalized cross-border markets, shared power reserves, and reliable power supply
This paper focuses on the methods that ensure the rotor angle stability of electric power systems, which is most frequently analyzed with small-signal models
Power oscillation damping (POD) control implemented in photovoltaic (PV) inverters has been considered an alternative to power system stabilizers (PSSs)
Summary
Large interconnected power systems offer several advantages such as liberalized cross-border markets, shared power reserves, and reliable power supply. As an alternative to PSSs, some studies outlined the possibility of using the converters of FACTS and HVDC to mitigate stability issues [15,16,17] Another large body of research studies, especially in the past 10 years, has focused on the application of power oscillation damping (POD) control implemented in photovoltaic (PV) inverters. This paper contributes to the study of sustainable integration of renewables by providing a comprehensive review of the effects of PV generation on the small-signal stability, as well as the recent advances in POD control through PV inverters.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
